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0w 9 m m r a M d e t n e t a P No, e2|,57|.

s. c. JONES & w. MAYO.

TRIPOD STAND. (Application flle'd Oct, 81,1898.)

(No Model.)

InventonS' Witnesses.

01. [Macaw ttorneyd THE 'mmms PFI'ERS ca. Paolo-Limo WASHINGTON u. c

UNITED STATES SETH C. J ONES AND WILLIAM MAYO, OF ROCHESTER, NEIV YORK, 'ASSIGNORS PATENT Orrrcn.

' TO EZRA R. ANDREWS, OF SAME PLACE.

TRIPOD-STAN D.

srncrrrcnrrcnv forming part of Letters Patent No. 621,571, dated March 21, 1899. Application filed October 31, 1898. Serial No. 695,084. (No inodel.)

T0 ctZZ whom it may concern:

Be it known that we, SETH C. JONES and \VILLIAM MAYO, citizens of the United States, and residents of Rochester, in the county of Monroe and State of New York, have invented certain new and usefulImprovements in Tripod-Stands, of which the following is a specification.

This invention relates to tripod-stands.

The object of the invention is to produce a simple, cheap, and effective device; and the invention consists in the mechanisms and constructions hereinafter described and claimed.

In the drawings, Figure 1 is a perspective View of the head of the tripod-stand embodying our invention. Fig. 2 is a bottom plan view of the base-plate thereof. Fig. 3 is a cross-section on the line 3 3 of Fig. 2. Fig. 4

illustrates the mode of connecting the tripodleg to the base and of locking the same thereto; and Figs. 5 and 6 are respectively a side elevation and an end elevation of the end of a tripod-leg bearing one of the locking-pins.

1 In the drawings, A represents a base-plate made of a sheet of suitable metal, having a series of ears ct a. turned down from the edges of said plate to form related pairs. Through each of the ears is cut a slot a having in the middle an enlarged portion (F. In this enlarged portion a which is shown as circular in the drawings, rests the pin 1) of a tripodleg B, so that the leg may be turned in said circular portion a in the ear a or a in order to fold the legs together or to spread them apart for setting the tripod upon the ground. The pins 1) project laterally and' in opposite directions from the tripod-legB, near its upper end. The end of the pin 17 is deformed or spread in order to form the portion b having a width greater than the diameter of the circular perforation a in the ear Ct or a and is of such shape as to produce the side edges b of the flattened portion b whereby the pin can pass through the slot a when the leg is in a particular positionsuch, for instance, as shown in dotted lines in Fig. lbut which cannot enter the slot except when the wings or edges I) register with the slot. If the leg is now turned from the dotted-line position in Fig. at to the-position shown in full lines in said figure, the pins 1) rest in the perforations a and the projecting edges of the flattened endb lap over the edges of said perforations, so that the pin cannot be withdrawn from the perforation until the leg is so turned that the widened edges of the end of the pin register again with the slot o The position of the leg with reference to the base-plate for insertion of the pin is preferably such that in the position for insertion of the pin the leg is at an angle to the car a or a such as would not occur when the tripod is in use.

The legs B of the tripod are constructed in a manner well known and having upper ends capable of moving or springing toward each other, as shown in dotted lines in Fig. 1, so

that the pins 1) may be inserted through the upward through the base-plate and properly' attached thereto. In order to attach a screw to the base-plate A in a cheap and effective which in the form shown is hexagonal, but which may be circular or of any other'form. If it is notimportant to prevent the screw from turning, the head may be circular; but

if it is desirable to prevent it from turning we provide flat faces 0 on the edges of the head of the screw for engagement with supporting and holding ears, which we make in the following manner: From the body of a sheet-metal base-plate A we punch portions .or cars 0 which are turned downward from the base-plate and are integral with it on the lines a so that the ears 0 are arranged closely around the head of the screw. The ears 0 may then be turned over to press against the edge of the screw-head c, with the ends of the ears extending under the same, and thus hold the screw between a portion of the base-plate Aand the turned ends of said cars. In case it is desired to prevent the screw from turnmanner, we provide the screw with a head 0, I

ing, the ears, as above stated, press against the flattened edges 0 of the screw-head, and the screw therefore can neither turn with reference to the base-plate nor be disconnected therefrom without breaking or straightening the cars 0 WVhat we claim is 1. In a tripod-stand, a base-plate having pairs of downwardly-turned ears, each ear having a perforation therethrough and a slot extending across said perforation, a tripod-leg having upper end bars movable to and from each other, and a pin on each bar having a widened end whose longest dimension is greater than the width of the perforation, said ends being adapted to pass through the slots, whereby the pins may be inserted into the perforations when the widened ends are. passed through the slots and are retained in said perforations when turned therein.

2. In a tripod-stand, a sheet-metal baseplate, a screw passing through said base-plate and having a head adapted to rest against the same, and ears integral with said base-plate and bent down against and over the head of said screw.

3. In a tripod-stand, a sheet-metal baseplate, a screw passing through said base-plate and having a head adapted to rest against the same and ears punched from said base-plate and turned down and around the edge of said screw-head. r

4. In a tripod-stand, a sheet-metal baseplate, a screw adapted to pass through said base-plate and having a head adapted to rest against the same, and flattened portions upon the edge of said head, and ears integral with,

said base-plate and turned down therefrom and adapted to engage against the flattened,

portions of said head and turned down and over the edge of said screw-head and en gagin g against the flattened portions of said head.

sE'rH o. JONES. WILLIAM MAYO.

\Vitnesses:

O. S. DAVIS, C. M. PERKINS. 

